HP Compaq Presario,Presario V6000 Maintenance And Service Manual page 178

Removal and Replacement Procedures
✎
The thermal pads and thermal paste should be thoroughly
cleaned from the surfaces of the fan/heat sink assembly 1, 2,
and 3, the system board components 4 and 6, and the
processor 5 each time the fan/heat sink assembly is removed.
Thermal pads and thermal paste should be installed on all
surfaces before the fan/heat sink assembly is reinstalled.
Thermal pads and thermal paste are included with all fan/heat
sink assembly, system board, and processor spare part kits.
Thermal Pad and Thermal Paste Locations
Reverse the above procedure to install the fan/heat sink assembly.
Maintenance and Service Guide 5–63